Reynolds Smooth-Cast® 65D Semi-Rigid Urethane Casting Resins

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Reynolds Smooth-Cast® 65D Semi-Rigid Urethane Casting Resins
Categories:	Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced
Material Notes:	Product Overview: The Smooth-Cast™ Semi-Rigid line of low-cost semi-rigid urethane casting resins cure quickly to semi-rigid plastics that offer exceptional strength and impact resistance. New Formulations – New Look! Smooth-Cast 45D, 60D and 61D are newly reformulated with a translucent white appearance and improved physical properties. All Smooth-Cast semi-rigids are now mercury free and phthalate free. These plastics are easy-to-use (mix ratio is 1A:1B by volume) and have low viscosities for minimal bubble entrapment. Vibrant colors are possible by adding SO-Strong™, UVO™ or Ignite™ colorants. Information provided by Reynolds Advanced Materials
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Physical Properties	Metric	English	Comments

Specific Gravity	1.05 g/cc	1.05 g/cc	ASTM D-1475
Viscosity	120 cP	120 cP	Mixed; ASTM D-2393
Linear Mold Shrinkage	0.010 cm/cm	0.010 in/in	ASTM D-2566

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	65	65	ASTM D-2240
Tensile Strength, Ultimate	16.5 MPa	2400 psi	ASTM D-638
Elongation at Break	20 %	20 %	ASTM D-638
Tensile Modulus	0.621 GPa	90.0 ksi	ASTM D-638
Flexural Strength	18.5 MPa	2690 psi	ASTM D-790
Flexural Modulus	0.518 GPa	75.1 ksi	ASTM D-790
Compressive Strength	25.4 MPa	3680 psi	ASTM D-695
Compressive Modulus	0.398 GPa	57.7 ksi	ASTM D-695

Thermal Properties	Metric	English	Comments
Heat Distortion Temperature	50.0 °C	122 °F	ASTM D-648

Processing Properties	Metric	English	Comments
Cure Time	10.0 - 15.0 min	0.167 - 0.250 hour	Handling Time
Pot Life	2.50 min	2.50 min	ASTM D-2471

Descriptive Properties
Color	White
Mix Ratio	100A:93B		by weight
	1A:1B		by volume
Specific Volume	26.4		[cu. in./lb.]

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PREYN013 / 296714

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